Nature’s Way Vitamin D3 High Strength Chocolate Chewable Tablets One tablet provides: Vitamin D3 50 µg (1,000% NRV*) *NRV means Nutrient Reference Value µg – microgram Directions for Adults: Chew one tablet once daily with food. Two tablets may be taken once daily on advice from a healthcare provider. Do not exceed recommended intake. Food supplements should not be used as a substitute for a varied balanced diet and healthy lifestyle.